20CrMnMo litšepe tse pota-potiloeng tse chesang

Ts'ebetso e ntle ea mocheso oa mocheso, ho tloaeleha ka mor'a hore ho itšehe hantle, ka mor'a ho tima le ho futhumatsa ka thepa e ntle ea mochine le mocheso o tlase oa ts'ebetso e thata, ka mor'a hore carburizing e be le matla a phahameng a flexural le ho hanyetsa ho roala, empa ho futsaneha ho futhumala, ho futhumala hantle pele ho tjheseletsa, ka mor'a hore ho chesehele ho lokela ho etsoa. belafala. E sebelisoa hangata litlhoko tsa tlhahiso ea boima bo phahameng ba holim'a metsi, ho hanyetsa ho apara hantle ke likarolo tsa bohlokoa tsa carburizing, tse kang likere, camshafts rod,

Sebopeho sa Lik'hemik'hale:
Khabone C: 0,17 ~ 0,23
Si Si: 1.17 ~ 1.37
Mong Mong: 0,90 ~ 1.20
Sebabole S: ho lumella litaba tse setseng ≤0.035
Phosphorus P: ho lumella litaba tse setseng ≤0.035
Chromium Cr: 1.10 ~ 1.40
Ni: ho lumella litaba tse setseng ≤0.030
Cu: ho lumella litaba tse setseng ≤0.030
Mo Mo: 0.20 ~ 0.30
Thepa ea Mechini:
Matla a ho tiisa σb (MPa): ≥1175 (120)
Matla a tlhahiso σs (MPa): ≥885 (90)
Elongation δ5 (%): ≥10
Phokotso ea ψ (%): ≥45
Matla a amang Akv (J): ≥55
Matla a amang αkv (J / cm2): ≥69 (7)
boima: ≤217HB
Saese ea mohlala: Saese ea mohlala ke 15mm e boima
Litlhaloso tsa kalafo ea mocheso le microstructure:
Litlhaloso tsa phekolo ea mocheso: ho tima 850 ℃, ho futhumatsa oli; mocheso oa 200 ℃, o pholile ka metsi, o pholile moea.
Microstructure: tempered martensite.
Boemo ba ho fana ka mocheso: ho phekola mocheso (ho tloaeleha, ho fokotsa kapa ho chesa) kapa ntle le ho fana ka phekolo ea mocheso, boemo ba ho pepa bo lokela ho boleloa tumellanong le konteraka.